Geared bracket for a window shade
US10337243B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2017 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Aug 27, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/905
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The geared window shade bracket comprises a sprocket having a ring gear on an inside circumference of the sprocket; a chain configured to be engaged with the sprocket such that, in response to pulling on the chain, the sprocket rotates; a sun gear that is configured to be restricted from rotation; one or more planet gears configured to rotate around the sun gear, wherein the one or more planet gears interface with the ring gear; and a planetary carrier configured to mate with the one or more planet gears. In response to the chain being pulled, the sprocket rotates, causing the planet gears to rotate, causing the planetary carrier to rotate, causing the hub to rotate, and causing a shade tube to rotate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.